
Looking to obtain the elusive DIO’s Diary in Bizarre Lineage? This Mythical item is essential for evolving your C-Moon Stand into the powerful Made in Heaven. I’ll show you exactly how to get this rare item and complete your Journey to Heaven questline.
| Method | Drop Chance | Difficulty | Recommended |
|---|---|---|---|
| DIO Raid Battle | Medium | Hard | ⭐⭐⭐⭐⭐ |
| Legendary Chests | Very Low | Easy | ⭐⭐ |
| Raid Shop Purchases | N/A | Medium | ⭐⭐⭐ |
DIO’s Diary is a Mythical-tier item required for Journey to Heaven 4, the final step in obtaining Made in Heaven Stand. This rare item can only be used when you have C-Moon as your active Stand, making it a crucial component for endgame progression.

The most reliable way to obtain DIO’s Diary is through the DIO Raid battle. Here’s how to access it:
Since you’ll need to complete the DIO Raid multiple times for S-rank requirements in Journey to Heaven 1 and 3, you’ll naturally increase your chances of obtaining the Diary during these runs.
DIO’s Diary can also drop from Legendary Chests, though the chances are extremely low:
While not directly purchasable, you can use Raid Tokens from completed raids to buy Legendary Chests from the Raid Shop, indirectly increasing your chances.
Once you obtain DIO’s Diary, here’s how to use it:
Important: Do not use Stand Arrows or Lucky Arrows while C-Moon is active, or you’ll lose your progress toward Made in Heaven.
Before farming for DIO’s Diary, ensure you have:
DIO’s Diary is a Mythical item with very low drop rates from Legendary Chests and medium chances from DIO Raid completion.
No, DIO’s Diary cannot be purchased directly. You must obtain it through raids or chest openings.
You’ll need to farm another one, so it’s best to use it immediately when you have C-Moon ready.
Yes, DIO’s Diary is used in Journey to Heaven 4, which requires completion of all previous quest stages.
While possible, DIO Raid has the highest drop chance. Other raids may rarely drop it in Legendary Chests.